2. 外语
  3. The Space Age _________ in October 1957 when the first artificial satellite was launched by the So- viet Union.

The Space Age _________ in October 1957 when the first artificial satellite was launched by the So- viet Union.

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问题 The Space Age _________ in October 1957 when the first artificial satellite was launched by the So- viet Union.
选项 A、initiated
B、originated
C、embarked
D、commenced
答案D
解析 动词辨异。initiate是及物动词，意为“开始，发起，创始，倡议”；originate作不及物动词时，意为“发源，来自，产生”；embark意为“上(飞机、汽车等)，发动，着手”；commence是不及物动词，意为“开始，使开始，着手”。根据句子结构和句意应选D。句意为：太空时代始于1957年10月，那时候第一颗人造卫星由苏联发射升空。
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大学英语六级

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